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CVE-2024-56409

18
FAUCET Score

CVE-2024-56409 is an unauthorized reflected cross-site scripting (XSS) vulnerability affecting PhpSpreadsheet versions prior to 3.7.0, 2.3.5, 2.1.6, and 1.29.7, specifically within the Currency.php file. An attacker can exploit this by manipulating the /vendor/phpoffice/phpspreadsheet/samples/Wizards/NumberFormat/Currency.php script. Rated as MEDIUM severity with a CVSS score of 5.4, this vulnerability requires user interaction (UI:R) and low privileges (PR:L) for a successful attack, leading to potential low impact on confidentiality and integrity (C:L, I:L). The attack complexity is low (AC:L) and it is network-exploitable (AV:N). There is currently no evidence of active exploitation, and no public exploit code is available in Metasploit, Nuclei, or ExploitDB. The vulnerability has also received minimal community discussion and media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.29.7CPE matchmatch criteria
cpe:2.3:a:phpoffice:phpspreadsheet:*:*:*:*:*:*:*:*
>= 2.0.0, < 2.1.6CPE matchmatch criteria
cpe:2.3:a:phpoffice:phpspreadsheet:*:*:*:*:*:*:*:*
>= 2.2.0, < 2.3.5CPE matchmatch criteria
cpe:2.3:a:phpoffice:phpspreadsheet:*:*:*:*:*:*:*:*
>= 3.3.0, < 3.7.0CPE matchmatch criteria
cpe:2.3:a:phpoffice:phpspreadsheet:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

8.3HIGH

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:N/SC:L/SI:H/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
ACTIVE
VS Confidentiality
NONE
VS Integrity
HIGH
VS Availability
NONE
SS Confidentiality
LOW
SS Integrity
HIGH
SS Availability
LOW
Exploit Maturity
NOT_DEFINED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.33%
Probability of exploitation in next 30 days
EPSS Percentile
24.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0032 is in the 36th percentile among its peer group of 15,239 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (5)

composerpatch availablevia ghsa
Product: phpoffice/phpspreadsheetFixed in: 3.7.0
composerpatch availablevia ghsa
Product: phpoffice/phpspreadsheetFixed in: 1.29.7
composerpatch availablevia ghsa
Product: phpoffice/phpspreadsheetFixed in: 2.1.6
composerpatch availablevia ghsa
Product: phpoffice/phpspreadsheetFixed in: 2.3.5
github_advisorypatch availablevia nvd_reference
View patch

Vendor Advisories (1)

composerGHSA-j2xg-cjcx-4677high

PhpSpreadsheet allows unauthorized Reflected XSS in Currency.php file

Jan 3, 2025

References

github.com / PHPOffice/PhpSpreadsheet/commit/700a80346be269af668914172bc6f4521982d0b4
Patch
github.com / PHPOffice/PhpSpreadsheet/security/advisories/GHSA-j2xg-cjcx-4677
ExploitVendor Advisory